CN209213006U - Very stiff and demanding cone ball face sealing butterfly valve - Google Patents
Very stiff and demanding cone ball face sealing butterfly valve Download PDFInfo
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- CN209213006U CN209213006U CN201821950463.4U CN201821950463U CN209213006U CN 209213006 U CN209213006 U CN 209213006U CN 201821950463 U CN201821950463 U CN 201821950463U CN 209213006 U CN209213006 U CN 209213006U
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- valve
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- sealing
- valve body
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Abstract
A kind of very stiff and demanding cone ball face sealing butterfly valve.It is characterized by: being fixedly installed with valve seat retaining ring on the valve body, the valve seat, which floats, to be arranged between valve body and valve seat retaining ring, multi-turn O-ring seal is equipped between the valve seat outer ring and valve interior wall, the valve seat inner ring is formed with into cone sealing surface；The butterfly plate outer ring is formed with a circle annular convex platform, and the annular convex platform outer ring forms ball seal face, sealing cooperation firmly between the cone sealing surface and ball seal face.The advantage is that: realizing that hard sealing cooperates by cone sealing surface and ball seal face between valve seat and dish plate, the unnecessary abrasion of sealing surface in dish plate opening-closing process can not only be reduced, and it can be realized bigger seal pressure, obtain better seal effect, in addition valve seat is floated and is arranged, so that it in reverse pressure-bearing, valve seat can be under the promotion of medium, with dish plate synchronization-sliding, so that it is guaranteed that zero leakage.
Description
Technical field
The utility model relates to a kind of valves, are specifically related to a kind of very stiff and demanding cone ball face sealing butterfly valve.
Background technique
Hard seal butterfly valve is called flap valve, is a kind of simple regulating valve of structure, simultaneously can be used for low pressure pipeline medium
Switch control.Hard seal butterfly valve mainly plays cutting and throttling action on pipeline.Butterfly valve opening and closing element is a discoidal butterfly
Plate rotates in valve body around the axis of its own, to achieve the purpose that opening and closing or adjusting.Hard seal butterfly valve is suitable for occurring
Furnace, coal gas, steam, natural gas, town gas, hot and cold air, chemical industry, which are smelted in engineering and generation environment-friendly system, conveys various corruption
Corrosion, non-corrosive fluids medium pipeline on, for adjusting and being truncated the flowing of medium.Hard seal butterfly valve can be divided into hard manually
Sealed butterfly valve, pneumatic hard seal butterfly valve, electronic hard seal butterfly valve.
But currently, hard seal butterfly valve is easy to wear, poor sealing effect.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of very stiff and demanding cone ball face sealing butterfly valve, solves
The problem of existing hard seal butterfly valve poor sealing effect.
Technical solution adopted by the utility model: a kind of very stiff and demanding cone ball face sealing butterfly valve, including valve body, valve rod,
Butterfly plate, valve seat, bottom cover, driving executive module, the butterfly plate can be rotatably set in valve body by valve rod, the valve rod upper end
Stretch out valve body connection driving executive module；The bottom cover is arranged in body base, and cooperates with valve seal；It is solid on the valve body
Dingan County is equipped with valve seat retaining ring, and the valve seat, which floats, to be arranged between valve body and valve seat retaining ring, the valve seat outer ring and valve interior wall
Between be equipped with multi-turn O-ring seal, the valve seat inner ring is formed with into cone sealing surface；The butterfly plate outer ring is formed with a circle
Annular convex platform, the annular convex platform outer ring form ball seal face, hard close between the cone sealing surface and ball seal face
Envelope cooperation.
The annular convex platform has certain taper, and perpendicular with cone sealing surface.
The O-ring seal is equipped with 2 circles.
The axis deviation butterfly plate center and valve body center of the valve rod, in double eccentric structures.
The taper of the cone sealing surface of the valve seat is 32 °.
The beneficial effects of the utility model are: being realized between valve seat and dish plate by cone sealing surface and ball seal face
Hard sealing cooperation, can not only reduce the unnecessary abrasion of sealing surface in dish plate opening-closing process, and can be realized bigger close
Envelope obtains better seal effect than pressure, and in addition valve seat floats and is arranged, so that it in reverse pressure-bearing, valve seat can be in medium
Promotion under, and dish plate synchronization-sliding, so that it is guaranteed that zero leakage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the very stiff and demanding cone ball face sealing butterfly valve of the utility model embodiment.
Fig. 2 is the valve seat of the very stiff and demanding cone ball face sealing butterfly valve of the utility model embodiment and the enlarged diagram of dish plate.
Fig. 3 is the structural schematic diagram of the very stiff and demanding cone ball face sealing butterfly valve of the utility model embodiment.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown, a kind of very stiff and demanding cone ball face sealing butterfly valve, including valve body 1, valve rod 2, butterfly plate 3, valve seat 4, bottom cover
5, executive module 6 is driven, the butterfly plate 3 can be rotatably set in valve body 1 by valve rod 2, and valve body is stretched out in 2 upper end of valve rod
1 connection driving executive module 6；The bottom cover 5 is arranged in 1 bottom of valve body, and seals and cooperate with valve body 1；It is fixed on the valve body 1
Valve seat retaining ring 7 is installed, the valve seat 4, which floats, to be arranged between valve body 1 and valve seat retaining ring 7,4 outer ring of valve seat and valve body 1
The O-ring seal 8 of at least 2 circles is equipped between inner wall, 4 inner ring of valve seat is formed with into cone sealing surface 41；The butterfly plate 3
Outer ring is formed with a circle annular convex platform 31, and 31 outer ring of annular convex platform forms ball seal face 32, the cone sealing surface
Sealing cooperation firmly between 41 and ball seal face 32.
Realize that hard sealing cooperates by cone sealing surface 41 and ball seal face 32 between valve seat 4 and dish plate 3, it can not only
The unnecessary abrasion of sealing surface in 3 opening-closing process of dish plate is enough reduced, and can be realized bigger seal pressure, is obtained preferably
In addition valve seat 4 is floated and is arranged, so that it in reverse pressure-bearing, valve seat 4 can be under the promotion of medium, with dish plate 3 by sealing effect
Synchronization-sliding, so that it is guaranteed that zero leakage.
Further, the annular convex platform 31 itself has certain taper, and perpendicular with cone sealing surface 41, so that
When sealing, sealing surfaces center and the cone sealing surface 41 in ball seal face 32 fit, and stress is more balanced, reduce mill
Damage guarantees sealing.
Further, 1 center of 3 center of axis deviation butterfly plate and valve body of the valve rod 2, it is double inclined in double eccentric structures
The heart is related to so that butterfly plate 3 is detached from rapidly valve seat 4, significantly eliminates unnecessary extruding, scraping between butterfly plate 3 and valve seat 4
Phenomenon alleviates unlatching resistance away from reducing abrasion, improve longer seat life.
In addition, obtained according to experiment, when the taper of the cone sealing surface 41 of the valve seat 4 is 32 °, can obtain more preferable
Effect.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' " contains
Justice is two or more.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The utility model thought of utility model is not limited to that utility model, and any repacking with the utility model thought all will
It is included in this patent scope of patent protection.
Claims (5)
1. a kind of very stiff and demanding cone ball face sealing butterfly valve, including valve body (1), valve rod (2), butterfly plate (3), valve seat (4), bottom cover (5),
It drives executive module (6), the butterfly plate (3) can be rotatably set in valve body (1) by valve rod (2), valve rod (2) upper end
Stretch out valve body (1) connection driving executive module (6)；The bottom cover (5) is arranged in valve body (1) bottom, and matches with valve body (1) sealing
It closes；
It is characterized by: being fixedly installed with valve seat retaining ring (7) on the valve body (1), the valve seat (4), which is floated, to be arranged in valve body
(1) between valve seat retaining ring (7), multi-turn O-ring seal (8) are equipped between valve seat (4) outer ring and valve body (1) inner wall, institute
It states valve seat (4) inner ring and is formed with into cone sealing surface (41)；
Butterfly plate (3) outer ring is formed with a circle annular convex platform (31), and annular convex platform (31) outer ring forms ball seal face
(32), sealing cooperation firmly between the cone sealing surface (41) and ball seal face (32).
2. very stiff and demanding cone ball face sealing butterfly valve according to claim 1, it is characterised in that: annular convex platform (31) tool
There is certain taper, and perpendicular with cone sealing surface (41).
3. very stiff and demanding cone ball face sealing butterfly valve according to claim 1, it is characterised in that: the O-ring seal (8) sets
There are 2 circles.
4. very stiff and demanding cone ball face sealing butterfly valve according to claim 1, it is characterised in that: the axle center of the valve rod (2)
Deviate butterfly plate (3) center and valve body (1) center, in double eccentric structures.
5. very stiff and demanding cone ball face sealing butterfly valve according to claim 1, it is characterised in that: the circular cone of the valve seat (4)
The taper of body sealing surface (41) is 32 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821950463.4U CN209213006U (en) | 2018-11-26 | 2018-11-26 | Very stiff and demanding cone ball face sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821950463.4U CN209213006U (en) | 2018-11-26 | 2018-11-26 | Very stiff and demanding cone ball face sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213006U true CN209213006U (en) | 2019-08-06 |
Family
ID=67461144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821950463.4U Active CN209213006U (en) | 2018-11-26 | 2018-11-26 | Very stiff and demanding cone ball face sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550562A (en) * | 2020-05-20 | 2020-08-18 | 上海禾技实业有限公司 | Eccentric butterfly valve |
-
2018
- 2018-11-26 CN CN201821950463.4U patent/CN209213006U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550562A (en) * | 2020-05-20 | 2020-08-18 | 上海禾技实业有限公司 | Eccentric butterfly valve |
| CN111550562B (en) * | 2020-05-20 | 2021-12-28 | 上海美力德阀门制造有限公司 | Eccentric butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 4900, sandaoshan Road, Binhai Development Zone, Wenzhou City, Zhejiang Province 325000 Patentee after: Keke Group Co.,Ltd. Address before: No. 4900, sandaoshan Road, Binhai Development Zone, Wenzhou City, Zhejiang Province 325000 Patentee before: KEKE VALVE INDUSTRIAL Co.,Ltd. |